U.S. imports of Hard Rubber (Ebonite) — All Forms & Articles (HS 401700) totaled $1.9M in August 2026, imported from 39 countries.
Importers of Hard Rubber (Ebonite) — All Forms & Articles paid $174K in duties in August 2026, an average duty rate of 9.19% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataHard rubber, commercially known as ebonite or vulcanite, is distinguished from soft vulcanized rubber by its high sulfur content and rigid, thermoset structure, making it suitable for electrical insulators, bowling balls, chemical-resistant linings, and specialty industrial components. The heading covers hard rubber in all forms — including waste and scrap — as well as finished articles, all under a single US tariff line (4017000000). Canada leads US imports, followed by China. Because hard rubber is a purely industrial material with no food, drug, or biological application, no mandatory admissibility review applies at the border.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
319 import shipments a month
Hard rubber is defined by a sulfur content typically exceeding 32% by weight combined with the rubber, producing a rigid, non-elastic thermoset material. Soft vulcanized rubber contains far less sulfur and retains elasticity. When composition data is unavailable, hardness testing (Shore D scale) and the article's lack of elastic recovery under deformation are practical indicators. CBP may request a chemical analysis certificate if the classification is disputed.
Yes — heading 401700 explicitly covers hard rubber in all forms, including waste and scrap, as well as finished articles, all under the single US line 4017000000. This contrasts with soft vulcanized rubber, where waste and scrap have their own heading (4004). Importers dealing in hard rubber scrap for recycling or reprocessing should confirm that the material meets the chemical definition of hard rubber to avoid misclassification into the soft-rubber scrap heading.
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Subheading 1 of 1 in heading 4017
Subheading 401700 · $1.9M of $1.9M
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 4017000000 | Hard Rub in All Forms; Articles of Hard Rubber | $1.9M | 9.19% | 40.92% | $174K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 4017000000 | Hard Rub in All Forms; Articles of Hard Rubber | $447K |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
ImportsExports
Imports
$1.9MYoY · free account
Exports
$447KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $22.5M of Hard Rubber (Ebonite) — All Forms & Articles and exported $6.7M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Canada and China together supply 67% of it. China pays 40.2% duty; Canada <0.1%.
customs district
destination
entry
rate provision · imports
59.1% enters free of duty; duty collected equals 9.19% of imports for consumption.